Fix method doc signatures for multiline required parameters (#374)

* Fix method doc signatures for multiline required parameters.

Existing doc generator failed to recognize parameters as required when parameter descriptions
extended over more than one line. Besides presenting incorrect information, resulting
inconsistencies broke checks for automated sample generation.

* Regen docs
diff --git a/docs/dyn/classroom_v1.courses.html b/docs/dyn/classroom_v1.courses.html
index a449dce..64a47c0 100644
--- a/docs/dyn/classroom_v1.courses.html
+++ b/docs/dyn/classroom_v1.courses.html
@@ -98,10 +98,10 @@
   <code><a href="#create">create(body, x__xgafv=None)</a></code></p>
 <p class="firstline">Creates a course.</p>
 <p class="toc_element">
-  <code><a href="#delete">delete(id=None, x__xgafv=None)</a></code></p>
+  <code><a href="#delete">delete(id, x__xgafv=None)</a></code></p>
 <p class="firstline">Deletes a course.</p>
 <p class="toc_element">
-  <code><a href="#get">get(id=None, x__xgafv=None)</a></code></p>
+  <code><a href="#get">get(id, x__xgafv=None)</a></code></p>
 <p class="firstline">Returns a course.</p>
 <p class="toc_element">
   <code><a href="#list">list(studentId=None, pageSize=None, courseStates=None, teacherId=None, pageToken=None, x__xgafv=None)</a></code></p>
@@ -110,10 +110,10 @@
   <code><a href="#list_next">list_next(previous_request, previous_response)</a></code></p>
 <p class="firstline">Retrieves the next page of results.</p>
 <p class="toc_element">
-  <code><a href="#patch">patch(id=None, body, updateMask=None, x__xgafv=None)</a></code></p>
+  <code><a href="#patch">patch(id, body, updateMask=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Updates one or more fields in a course.</p>
 <p class="toc_element">
-  <code><a href="#update">update(id=None, body, x__xgafv=None)</a></code></p>
+  <code><a href="#update">update(id, body, x__xgafv=None)</a></code></p>
 <p class="firstline">Updates a course.</p>
 <h3>Method Details</h3>
 <div class="method">
@@ -450,7 +450,7 @@
 </div>
 
 <div class="method">
-    <code class="details" id="delete">delete(id=None, x__xgafv=None)</code>
+    <code class="details" id="delete">delete(id, x__xgafv=None)</code>
   <pre>Deletes a course.
 
 This method returns the following error codes:
@@ -484,7 +484,7 @@
 </div>
 
 <div class="method">
-    <code class="details" id="get">get(id=None, x__xgafv=None)</code>
+    <code class="details" id="get">get(id, x__xgafv=None)</code>
   <pre>Returns a course.
 
 This method returns the following error codes:
@@ -875,7 +875,7 @@
 </div>
 
 <div class="method">
-    <code class="details" id="patch">patch(id=None, body, updateMask=None, x__xgafv=None)</code>
+    <code class="details" id="patch">patch(id, body, updateMask=None, x__xgafv=None)</code>
   <pre>Updates one or more fields in a course.
 
 This method returns the following error codes:
@@ -1221,7 +1221,7 @@
 </div>
 
 <div class="method">
-    <code class="details" id="update">update(id=None, body, x__xgafv=None)</code>
+    <code class="details" id="update">update(id, body, x__xgafv=None)</code>
   <pre>Updates a course.
 
 This method returns the following error codes: